The Invincible Full-Moon System

Somewhere in Ratmawati City,

A thin man is scratching his head like a madman, papers scatter around his room that makes it messy, different kind of machine also decorates his room from a tube with body parts inside of it to a useless machine that is malfunctioning, chemical substances also assigned neatly on the shelf with different colors.

This particular man fits the category of a mad scientist especially with his white coat, he wears a mask that is coverin his mouth leaving only his piercing green eyes, the mask is emitting a green gas that looks corrosive, his skin is also greenish if inspected closer.

The man is scratching his head seeming desperate about something, the veins on his forehead are bulging as if he's thinking hard about something.

But his thoughts are disturbed when the door opened forcefully,

BAM!!

"Prof.K! It's been months since your latest discovery! A deal is a deal, you must get out of this rat hole and find one member and test him properly to join our organization!", a muscular middle-aged man with immense pressure said just after opening the door, his body language is that of a leader or rather, a king.

The middle-aged man wears a neat set of sleeveless combat vest with a hint of red on its sides that shows his muscular arms, on his shoulder are a nine-headed crow tattoo that looks terrifying. Black crown with red jewels is also shining on top of his head, he wears a black cape with white fur on its sides that gives off a domineering aura which makes people lowers their head in his presence.

If Rex was to be here at this moment, he will instantly be crushed because of the pressure emitted by the middle-aged man.

Prof.K panicked, he replied desperately, "Jax! Wait! I made one! This potion can attract nymph", he takes out a pink potion from his pocket and presents it to the middle-aged man.

Jax scoffed and replied, "How many times do I have to say call me John! And this?", He takes the potion from Prof.K's hands while looking at it with contempt.

Prof.K is delighted when the potion is taken from his hand but not long after that delighting feeling crumbled.

CLANK!!

The potion is smashed to the ground by John, "There is already a plant that can attract nymph! Why waste resources to make this?", he said with anger written all over his face.

Prof.K was helpless, his face seems devastated.

John face-palm himself while shaking his head, "Why be so dramatic? You just need to go out and test this particular kid in Ochyra University that is sponsored by agent Joseph there"

Prof.K grabbed John's leg and begged, "NO! I DON'T WANT TO GO OUT!"

"This is not negotiable, test that kid in these few days, if you don't then I will destroy this rat hole", he said while trying to shrug Prof.K who is holding onto his feet.

"Take this seriously Prof.K, the Supernatural are becoming more active recently. We need to nurture more gifted people to face them", John said with a gloomy expression.

Hearing this, Prof.K sigh and stands up straight.

He flicks his finger and instantly his clothes change into an all-black robe, he also wears a black crow mask, and then he bows to John, "I understand, I will assess the kid's aptitude and report back immediately", he said unwillingly as if the job is the hardest job he has ever got.

Prof.K then salute and said, "May humanity rise, as the black crow's eyes cast"

Seeing Prof.K, John smiles and replied, "Until supernatural demise, our Stygian Crow Organization will last"

After saying that, Prof.K puffs into a green smoke vanishing from the room.

Meanwhile, Rex has gone back to Adhara.

Adhara already calmed down a bit but she still bit her lips troubled about something,

Rex tells Adhara to continue, he's lying to himself if he says that he is not curious about Adhara's past.

With that Adhara continue on her story,

Her father becomes violent when he gets back, he feels like a failure because of his incompetence. He then wanted Adhara to take revenge for her mother, so he began training Adhara harshly. Whenever Adhara made a mistake or slack off, he will hit Adhara as if she's a pet. Sometimes he also got frustrated and got drunk, one day he also once touch Adhara inappropriately when he was drunk. Because of that, Adhara becomes traumatized whenever she saw a guy reaching out his hand to her, he always remembers his father's torture which also brings back the memory of her mother dying.

"I know that he is not a bad father on the contrary he is a loving father, he's just hopeless against the situation that pushed him into the corner. Because of that, I really want to get stronger, stronger to take revenge and make father proud", Adhara said while sobbing in tears.

Rex felt that Adhara and him are similar, the thirst to get stronger to take revenge burdens them for life. Rex and Adhara also traumatize by past memories, they seem to live in a nightmare that will not come to an end if they didn't get their revenge.

"That's why...", Adhara stops a moment to musters her courage before he continues, "Your emotional Aura and my father is almost the same, that's why I thought that you...you can help me in taking revenge"

Adhara then holds Rex's hand and gripped it tightly with tears falling down on the side of her face, "Call it a gut feeling, but I'm sure that you can help me!"

Rex was silent, he lowers his head in thought, "What are you willing to sacrifice for power?"

'If her determination is the same as I then I will', before Rex can finish his thoughts, Adhara answers,

"Everything!", her eyes flashed with determination, Rex can see himself in her eyes.

Rex smirked after hearing Adhara's answer, "Adhara, do you want to know what I really am?", He asks, he then stands up while looking at Adhara right in her eyes.

While he was standing up, Rex is asking the system, 'System I want to turn her into a Werewolf. What should I do?'

<The user need to brand her with a Rune you choose, Then you will need to bring her as close to the moon after the user makes her drink a drop of the user blood>

After reading the system notification, Rex understands the process of it but then asks again, 'What is the available Rune, Where do I put it, and can it be changed in the future?'

<Strength Rune and Agility Rune is currently available, Rune can be changed at expense of immense mana>

<Analyzing the perfect place for Adhara's branding...>

<Analyzed! Location: Neck!>

Rex then chooses the Agility Rune to brand Adhara with, the palm of his hand then started to burn and the rune symbol appeared on it.

Adhara knit her brows in confusion, Rex then continues, "I am a Werewolf!"

After Rex said that, the dark red aura started to manifest into a Werewolf behind him.

Adhara gasp in surprise, although she already guessed Rex's declaration still came as a surprise to her.

The pressure emitted by Rex makes it hard to breathe, Adhara widened her eyes as Rex's hand gripped her neck tightly.

"Huackk!", Adhara was shocked, she was not expecting Rex to gripped her neck so hard. She is having a hard time breathing but deep down she trusted Rex.

"Brand!"

Just as Rex said that Adhara can feel her neck burning, she struggles to break free but Rex's hand gripped her tightly.

The heat is getting hotter as she tries to struggle even more, the moonlight shone down on Adhara from the window, her body started to emit a white hue and the bone on her body is making a cracking sound.

"AAAKKHHH!!", Adhara lets out a scream of pain, the pain is starting to become unbearable after her bones move.

<Transformation Success, Feed her a drop of the user's blood>

After getting the notification, Rex puts Adhara down who is still screaming in pain. He then scratches the palm of his hand and squeezes a drop of blood into Adhara's mouth.

Drop!

The blood landed on her mouth, Immediately after, Adhara's scream started to fade as she slowly opens her eyes.

Rex inspected Adhara, the rune on her neck is etched perfectly just near her back that glows green, then suddenly a notification appeared that makes his mouth curve into a smile,

<Congratulation on obtaining the user's first pack member!>

<Please give a name for your pack>

Reading this, Rex knit his forehead in thought.

After a while and feeling lazy, Rex then decided on the pack name, 'Silverstar'

<Confirmed Pack Name, Silverstar!>

Rex then nodded his head in confirmation after seeing the pack section becomes Silverstar, he then focuses back on Adhara and saw she is already sitting down.

Adhara widened her eyes after feeling the changes in her body, her senses are amplified, even the scream of faraway students that are fighting skeletons can be heard by her.

She looks at Rex and asks, "Did I really transform into a Werewolf?"

Rex smiles and tosses his battle gloves, just as the gloves caught by Adhara, "Ouch!"

The battle gloves that contain a little bit of silver stings Adhara's hand,

'Hmm? The effect of Silver on her is different than mine. My stats will decrease when I touch silver but it didn't damage me so why is it damage her?', Rex thought before shrugging it off.

"I really become a Werewolf", she murmurs softly.

Adhara inspects her body and notices that nothing changes except her hair just got longer, she then widened her eyes and look inside her pants before she sighs in relief.

"What the heck are you doing?!", Rex shouted when he saw Adhara checks her pants.

,m Adhara look at Rex innocently and replied, "I thought that my pubic hair grows longer too but thankfully it is not"

Rex face-palm himself and said, "You're taking this rather calmly"

"Well, as long as I become stronger. I don't care about anything else, even abandoning my humanity is nothing", she said resolutely.

Rex smiles knowing that Adhara has the same thinking process as him.

Just as he wants to explain things to Adhara, he saw Adhara's face blush while holding her neck.

"What now?", Rex asks after looking at Adhara's weird behavior.

Adhara glance timidly at Rex with a blush on her face, "I don't know...but when you gripped my neck it somehow felt..."

Rex looks at Adhara with a questioning look, trying to guess what she is trying to say when suddenly.

"It felt good, I might get addicted", she said while covering her blushed face.

Hearing this, Rex was speechless, 'WHAT THE HELL!!'